This explains the requirements of BSC Change Proposal CP1434, which changed the 3-digit numeric Line Loss Factor Class (LLFC) Id to an Alphanumeric LLFC Id in June 2016.

<div data-id="what-llfc-ids-will-be-allowable-once-cp1434-is-implemented" style="text-align:left"><b>What <u class='defined-term'>LLFC</u> Ids will be allowable once CP1434 is implemented?</b></div>

<div data-id="why-has-the-llfc-id-been-defined-as-variable-rather-than-fixed-length" style="text-align:left"><b>Why has the <u class='defined-term'>LLFC</u> Id been defined as variable rather than fixed length?</b></div>

<div data-id="how-will-the-existing-single-and-two-digit-llfc-ids-be-represented" style="text-align:left"><b>How will the existing single and two digit <u class='defined-term'>LLFC</u> Ids be represented?</b></div>

<div data-id="does-this-mean-that-llfc-ids-are-not-padded-with-leading-zeroes" style="text-align:left"><b>Does this mean that <u class='defined-term'>LLFC</u> Ids are not padded with leading zeroes?</b></div>

<div data-id="does-this-apply-to-codes-that-use-letters-as-well-as-those-that-only-contain-numbers" style="text-align:left"><b>Does this apply to codes that use letters as well as those that only contain numbers?</b></div>

<div data-id="will-we-see-alphanumeric-llfc-ids-on-the-30-june-implementation-date" style="text-align:left"><b>Will we see alphanumeric <u class='defined-term'>LLFC</u> Ids on the 30 June Implementation Date?</b></div>

<div data-id="how-will-llfc-ids-be-validated-against-the-format-rules" style="text-align:left"><b>How will <u class='defined-term'>LLFC</u> Ids be validated against the format rules?</b></div>

<div data-id="do-market-participants-need-to-perform-format-validation" style="text-align:left"><b>Do market participants need to perform format validation?</b></div>

<div data-id="will-incorrectly-formatted-llfc-ids-in-aggregation-files-be-rejected-by-central-systems" style="text-align:left"><b>Will incorrectly formatted <u class='defined-term'>LLFC</u> Ids in aggregation files be rejected by central systems?</b></div>

<div data-id="which-data-flows-are-affected" style="text-align:left"><b>Which data flows are affected?</b></div>

<div data-id="who-should-read-this-guidance" style="text-align:left">Who should read this guidance</div>

CONTENTS

Alphanumeric Line Loss Factor Class Ids V3.0

Defined Terms

Cross-references